Knight's Armament SR-15 Gas Block Taper Pin
Knight's Armament SR15 gas block taper pins. These are replacement taper pins for the Mod 1 SR-15 guns. If you've ever had to remove these you know that with their smaller than normal size they are easily deformed.
Spec: #3/0 x 5/8 inch long
Taper pins sold individually, 2 required per gas block.